30c Greenish Black, Special
Printing (176). Without gum as issued, beautiful deep shade,
well-centered with wide margins all around, scissors-separated as almost
always but leaving virtually full perfs all aroundVERY FINE. APPROXIMATELY 40 EXAMPLES OF THE 30-CENT 1875 CONTINENTAL SPECIAL PRINTING ARE BELIEVED TO EXIST.
With 1960 P.F. certificate (Image)
90c Violet Carmine, Special
Printing (177). Without gum as issued, beautiful bright color on fresh
paper, scissors-separated as usual but leaving full and intact perfs at
bottom and left, insignificant light toning on reverse does not show
thruFINE EXAMPLE OF THE 90-CENT 1875 CONTINENTAL SPECIAL PRINTING.
Approximately 40 are believed to exist. With 2004 P.S.E. certificate (Image)
90c Violet Carmine, Special
Printing (177). Without gum as issued, beautiful bright color on fresh
paper, scissors-separated as usual but leaving full and intact perfs at
bottom and leftVERY FINE EXAMPLE OF THE 90-CENT 1875 CONTINENTAL SPECIAL PRINTING.
Approximately 40 are believed to exist. With 1986 and 2003 P.F. certificates. (Image)
2c Vermilion, With Grill
(178c). Original gum, clearly-defined grill, brilliant color on bright
paper, Extremely Fine example of the Continental 2c experimental grill,
with 1995 P.F. certificate (Image) 
5c Blue, Continental Grill
(179c). J. Grill, extremely strong grill with some points breaking
through the paper as often occurred on the Continental grills, original
gum, Very Fine and choice, rare, ex Zoellner, with 1992 P.F. certificate (Image) 
6c Pink (186). Original
gum, lightly hinged, brilliant color, almost perfectly
centeredEXTREMELY FINE. A SUPERB EXAMPLE OF THE 6-CENT 1879 AMERICAN BANK NOTE ISSUE.
With 1993 P.F. certificate (Image)
10c Brown, Without Secret Mark
(187). Original gum, intense color on fresh paperEXTREMELY FINE EXAMPLE OF THE 10-CENT 1879 AMERICAN BANK NOTE ISSUE WITHOUT SECRET MARK.
Scott 187, without secret mark, is far rarer in such well-centered, sound condition than its secret-mark counterpart, Scott 188.
With 1990 P.S.E. certificate. (Image)
10c Brown, With Secret Mark
(188). Slightly glazed original gum, rich color, Jumbo
marginsEXTREMELY FINE. A SUPERB EXAMPLE OF THE 10-CENT 1879 AMERICAN BANK NOTE ISSUE WITH SECRET MARK.
With 1991 P.F. certificate (Image)
30c Full Black (190).
Original gum, barest trace of hinging, intense shade and proof-like
impression, wide marginsEXTREMELY FINE. A BEAUTIFUL AND REMARKABLY FRESH LIGHTLY-HINGED EXAMPLE OF THE 30-CENT 1879 AMERICAN BANK NOTE COMPANY ISSUE.
With 1982 P.F. certificate. (Image)
90c Carmine (191).
Original gum, lightly hinged, radiant color, wide margins all
aroundEXTREMELY FINE. A WIDE-MARGINED ORIGINAL-GUM EXAMPLE OF THE 1879 AMERICAN BANK NOTE ISSUE.
With copy of 1989 and with 1993 P.F. certificates. (Image)
90c Carmine, Imperforate
(191b). Horizontal pair, original gum, huge margins, rich
colorEXTREMELY FINE. A BEAUTIFUL PAIR OF THE IMPERFORATE 90-CENT 1879 AMERICAN BANK NOTE ISSUE.
With copy of 1997 P.F. certificate for block, this being the top pair. (Image)